• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Wanted: Vacuum Tube Phono Preamp for PAS

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A friend, who is a novice builder, recently acquired an unmodified Dynaco PAS preamp. I have suggested an easy-to-build vacuum tube line stage that will run off a modified and updated PAS power supply but have not yet found an easy-to-build, good-sounding DIY MM phono stage that will also run off the PAS power supply. Any thoughts? Any schematics?
 
RIAA this way.

A friend, who is a novice builder, recently acquired an unmodified Dynaco PAS preamp. I have suggested an easy-to-build vacuum tube line stage that will run off a modified and updated PAS power supply but have not yet found an easy-to-build, good-sounding DIY MM phono stage that will also run off the PAS power supply. Any thoughts? Any schematics?

The Morgan Jones 'Valve amplifiers' book has an excellent bunch of info and circuits on this. I highly recommend reading it before moving ahead.
 
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